... (or customized)Specification:17.5*9.5cm 50pcs/box 2000/caseN95 Filter Face MaskProduct introduction:Material: ... for differentfacial sizeExcellent water repellent and air permeabilityMaintenance/cleaning free, convenient to useRecommended applications: Hardware, plating ... , mining, chemical, sterilizing, spray, agriculture, solution cleaning, painting, ink and dyeing, electronic, food processing, ...